Abstract

Philosophers probably ask more What is questions than anyone else. From the Socratic-Platonic What is Justice, Love, Virtue, etc., through the Aristotelian quest for essences and the contemporary concern with various modes of meaning, philosophers have kept raising What is questions. Now some say that this penchant for What is represents the worst in philosophy. Such questions inevitably lead to confusing verbal or definitional matters, with substantive or factual matters. Lexicography is not an important part of either science or philosophy. It is truth and not meaning that matters. If philosophers are to continue with their What is brand of questioning, they would do well to interpret What is x as a request for a true theoretical account of x. It is true theories we are after—a not very surprising conclusion. When a philosopher asks What is life? he is asking for the best theoretical account available of the phenomenon of life. Of course, we cannot always be sure that this is the question he is asking. He might be asking about the importance of life in some evaluative sense. Is life better than death? What is life, anyway? Is life worth living? And perhaps these are the truly philosophical questions about life. They are certainly elusive enough to deserve the appellation philosophical. When the scientist asks what is life, he asks for a biological theory. But when a philosopher asks this question, he is after something deeper. There are philosophers and philosophers. In what follows, philosophers are what used to be termed natural philosophers. In this usage, Newton was a great philosopher. And who would not be happy to have Newton as one of us.